public sector workers also pay taxes, so in effect they are paying twice for their pension. Private sector can join a pension if they want. When i started in my job joining the pension scheme was compulsory there was no opt out option, 27 years later the government are wanting to move the goalposts of my pension scheme, i'm not allowed to change the rules, why should they.
Have you also noticed that MP's pensions are exempt from the hutton review? If you're gonna rant then write a letter to your MP and rant at him not fellow workers who are not going to get rich from a public sector pension.